Conduit



Oct- 17, 1933 M. H. GYsLlNG 1,931,465

CONDUIT Filed Jan. 2l, 1930 3 Sheets-Sheet 1 /1 Mays/mg Oct. 17, 1933. M, H GYsLlNG 1,931,465

CONDUIT I Filed Jan. 21, 1930 3 Sheets-Sheet 2 Oct. 17, 1933. A M. H. GYsLlNGy 1,931,465

' coNDUIT Filed Jan. 21, 1930 s rsheets-sheet 3 gwoemtcw mesma oct. 1v, 1933 assigner to American District Steam Company, North Tonawanda, N. Y., a corporations! New York Application Jmmy 1,A'19aof 422,431

somma. (ci. 137-15) This invention relates to conduits and, more particularly, to a type of conduit. for housing steam pipes and the like. i

The principal object of the invention -is to im- 6 prove, generally, the construction of conduits of the character set forth with a viewto providing a strong, durable construction in which provision is particularly made for accurate mounting of the several parts which will not be disturbed l by reason of the expansion and contraction of the pipe-orv the conduit.

Another object of the invention is to provide, in a conduit of the character set forth, means for supporting a steam pipe or the like therein l in such a manner as to permit the free expansion of the pipe under the infiuence of changing tem,-i

perature. A further object of the invention is to provide a conduit, preferably of metal such vas cast irons,`

'A further object of the invention is to provide in a conduit for housing steam pipes and the like, means for connecting the steam pipe and the conduit in such a manner that equaldistribu-v tion of the expansion of the enclosed pipe is obtained, the said 'means being located, preferably..

between suitable expansion joints in the pipe.

- and the like within a conduit in such a manner that there may be a true and straight movement of the pipe into an-expansion joint during the expansion and contraction of the pipe.

Still another object of the invention is to provide, in a conduit for housing steam pipe and the like, means for supporting the usual insulation around the pipe so -as to prevent sagging of f said insulation in the event that the same becomes heavy due to the absorption of moisture.

Other and further objects of the invention and its many advantages will be more clearly brought out as the description proceeds.

y trated what I at present consider the preferred embodment dof my invention. It is to be understood, however, that these drawings are il- -lustrative, merely, and that the invention is not confined to the details of construction therein disclosed, but may be varied widely without sacrificing any of its salientfeatures or departing fromthe scope thereof as dened 4in the appended claims. l In these drawings:

` 1, and showing particularly the means I have pro- Still another object of the invention is to pro-- lthe anchoring of gli) mounted in posivfde means for accurately aligning a steam pipe varying 4temperature conditions. My invention In the accompanying drawings. I have illus-- A from that joint so that'it may be caulked, as here- Fig. 1 is a view in side elevationof a portion of a conduit constructed: in'accordance with my x invention;

Fig. 2 1s a view, in side,v eulvation, lsimilar to Fig.

vided for compensating for 'expansion of the con- Fig.3 is"a detailed view in vertical cross section of the conduit expansion sleeve:

Fig. 4 is a side elevation ofthe conduit expansionsleevep 'Y l Fig. 5 is a fragmentary sectional' view showing `the manner of joining the and lower sections of the conduit; Fig. 6 isla view in vertical cross section through 70 the conduit, on the line 6 8 of Fig. 1, showing particularly,.the mounting of a steam pipe there- '7 is a'view in longitudinal-'cross section of the portion ofthe structure illustratedin Fig. 6; Fig. 8 is a sectional view through the conduit showing,v in elevation, theA Aconstruction of analignment guide:

Fig. -9 is a'longitudinal sectional view onjline 9-9ofFlg.8

Fig. 10 isv a view in elevation of an 'anchoring j ring constructed inA accordancewith my inven Y tion;and l Fig. 11 is a fragmentary sectional view showing tion in the conduit. y I 4prefer to construct the conduit constituting the subject-matter of the present invention of cast iron because ofthe superiority of that mate' rial over terracotta and concrete conduits heretofore generally devised for'my purposes. An objection heretoforev existing withrespect to con# y duits made of cast iron is the difllculty of compensating for the expansion of .the conduit under providesA means f or compensating for that expansion and thus I haveremoved what is -perhaps the most serious objection to the use of cast iron in the construction of conduits of this character. ,f Referring now to the drawings, the conduit is constructed Vof a plurality of sections 1, each pro vided 'atits ends with flanges 2,'2 and composed of an upper half-section 3 anda lower half-.section 4. From an inspection of Figures 1 and 10. 105 it will be seen that theanges 2 do not extend'- all the way to the horizontal joint between the half-sections, but terminate a sufllcient distance inafter more fully described. r 1.10

Each of the half-sections 3 and 4 is provided, at suitably spaced points in its length, with bolting lugs 5 for the reception of suitable bolts 6 and the horizontal joint are caullred, the bolts 6 have served their purpose and are no longer needed.

For the purposev of providing a tight joint between the half-sections and thus prevent seepage of moisture into 4the conduit, a suitable longitudinal gasket 7, is interposed between the sections along their inner edges. The outside ofthe horizontal joint is caulked by a lead strip, as at 8, to provide a flexible joint of sufficient thickness to absorb the circumferential expansion of the conduit and also to provide for unequal longitudinal expansion of the half -sections due to the fact that the upper half-section is subjected to a higher degree of temperature than the lower halfsection. It will be noted from an inspection of Figure 5 that the recess provided for the lead strip 8 makes a shoulder adjacent to the outside line of the gasket '1, thereby forming a stop for the lead strip while caulking to prevent distortion of the water-tight gasket joint at that time.

The outer surface of the conduit is provided with suitably arranged reinforcing ribs 9. It will be understood Athat the conduit may be constructed of any number of sections, the adjacent sections being secured together by suitable bolts 10 passing through the abutting flanges 2, 2.

The conduit is preferably, and as shown, supported by suitable saddles 11, which are secured in a concrete base 12. At suitable intervals vin the length of the conduit and at the points therein where anchoring means are provided for securing the enclosed pipe to the conduit, as will hereinafter be more fully described, the conduit is encased in large reinforced concrete blocks 13 (see Figure 1), which blocks are suitably spaced from the base l2 so as to provide for expansion of the concrete. At these points, where the conl duit is encased in the concrete blocks, it is wrapped with heavy paper 13a, thus permitting expansion of the conduit.

Provision is also made for compensating for longitudinal expansion and contraction of the conduit. For this purpose certain sections of the conduit, at regular intervals in the length thereof, are mounted to telescope in an expansion sleeve 14 (see Figure 2) which, preferably, is encased in a concrete block 15. Suitable lead and oakum joints 16 are provided` between the sec- -tions of the conduit and the' expansion sleeve so that there may be no leakage at theend joints of the conduit. The expansion sleeve 14 is illustrated in detail in Figures 3 and 4 and by reference to these gures, it will be seen that the `sleeve comprises a ring member which is provided at its base with a flat portion 17 so that it may securely rest on the concrete base 12. The ring member 14 is machined'on the inside, or bore, for the purpose of providing bearing or sliding surfaces 14a for the machined spigot of the conduit and also for the purpose of acting as a stop for the lead caulking.

The foregoing description of the construction of the conduitpit is believed, will makey the subject-matter of my invention clear to those skilled 75 in the art and the features of ladvantage 91 my.

construction will be readily apparent and appreciated. j

Proceeding` now to the interior of thecondult and particularly to the means for supportinga steam pipe or the like therein, attention is first directed to Figure 6 of the drawings. In this figure the reference numeral 18 designates a steam pipe or the likeV which is provided with a suitable heat insulating` covering 19. It is well known that in pipes of this character which are provided with the usual type of heat insulating coverings,v the covering often sags due to the absorption of moisture within'the conduit, the

result being that the insulation is, by reason of the additional weight, compressed on the upper part of the pipe and sags or is pulled away at the lower part. To overcome this common defect, I have provided a: non-corrodible metal shield 20, which extends continuously below the pipe andV which, at suitable points in the length thereof, is supported by means of wires or bands 2l `secured to lugs 21a provided on the inside of the lower half-section of the conduit and immediately below its top surface. It will, of course, be understood that I do not limit my invention to a shield made of metal, but that on the other hand any other suitable material, which is non- Y corrodible and which is otherwise unaffected by heat and moisture, may be employed for this los purpose. This is an important feature of my invention and solves successfully a problem long existing inthe art.

At suitable points in the length of the conduit, I have provided means for supporting the steam pipe in such a manner that the pipe is free to 1410 move during expansion or contraction. This means comprises a roller support 22 which is mounted onl suitable lugs 23 extending inwardly within the' conduit. Upon' this roller support rests a roller 24. The pipe is provided with a saddle 25 which rides on the roller 24 so that the pipe may freely move during expansion and contraction. The saddle 25 comprises aA body portion 26 and a pair of wing members 27 which are welded to the pipe. This part of my construction will be'clear by reference to Fig. '1. -It is to be noted that because of this construction I do not have to cut away the insulation to pro'- Vide suicient space for movement of the pipe as in those cases where the pipe rests on the roller. To overcomerfriction, the saddle Y lis provided with flanges 28 which are in s sion joints, it beingjunderstood that such joints 1li will be provided at suitable points in the length of the pipe line and that they may be of any well-known construction. I have 'howeven'illustrated one form of means by which I amenabled to maintain the pipe line in true alignment and the construction of this means will be clear from an inspection of 8. This means comprises an alignment guide ring generally, by the reference numeral 29, composed of two sections 30 and 31 which are flat and are 145 provided with a collar for engaging the pipe andj a plurality of outstanding radial ribs, the sections being secured together by suitable bolts 32.v lIt ywill beunderstood that this alignment guide is l clamped tightly about the pipe 1 8 by of the bolts 32 and that the ribs extend beyond` the fiat portions lof the guide sections 30 and 31 and provide fine points of contact with the interior of the conduit at spaced circumferential points so that there will not be excessive friction during the movement of the pipe line.

As above stated, a suitable number of expansion joints of any well-known construction will be inserted at intervals in the length of the pipe. It is. of course, essential that the expansion of the pipe line should be equally distributed to these expansion joints and for this purpose I have provided an anchoring ring designated, generally,

by the reference character 33 and which is illustrated in detail in Figs. 10 and 11. The purpose of the anchoring ring is to secure the pipe line to the conduit. As will be clear from an inspection of Fig. 10, the anchoring ring 33 comprises two sections 34 and 35, which are secured together by means of bolts 38. The sections of the anchoring ring are provided with a machined flange 37 which, as will be seen from an inspection of Fig. 11, is clamped between the flanges 2, 2 of adjacent sections of the conduit and securely held in place by means of the bolts 10. Thus. the pipe 18 is anchored to the conduit and, at this point, as is shown in Fig. l. the conduit is embedded in the reinforced concrete block 13. It will be understood that the anchoring rings are located approximately midway between expansion joints of the pipe line, and it will be apparent from the construction described that the expansion -ot the pipe line will be equally distributed to the joints on either side of the anchoring ring.

It is believed that the foregoing description will make clear the construction and operation of my invention. It will be seen that I have provided a conduit, preferably of cast iron, for housing steam pipes and the like, provision being made for compensation for the expansion and contraction of the conduit as a whole, as well as the upper and lower half-sections together with the pipe therein. I have also provided means for equally distributing such expansion and contraction. Furthermore, I have provided novel means for supporting and anchoring a steam pipe and the like within conduits together with novel means for lending additional support to the heat insulating covering usually employed on such pipe. The structure is. generally speaking, of simple design and lends itself readily to practical installation where field conditions are unusually diiiicult to cope with. To simplicity of design may be added the advantages of strength and durability which are, of course, desirable characteristics of a structure of this nature designed for the purposes indicated.

What I claim is:

1. A coduit for steam pipes and the like, a pipe in said conduit, an anchoring ring secured between the ends of adjacent sections of the conduit rigidly connecting said pipe to said conduit, and an alignment ring carried by said pipe and slidable in said conduit for maintaining said pipe in accurate alignment with respect to said conduit.

2. A conduit for steam pipes and the like coinprising a plurality oi metallic sections, each of said sections being longitudinally divided into a plurality of complementary part-sections, said complementary sections being independently expansible with respect to each other, and an expansion member connecting certain of said sections permitting expansion of the part-sections independently of each other.

3. A conduit for steam pipes and the like comprising a plurality of metallic sections, each of saidV sections being longitudinally divided into a plurality of complementary part-sections, said complementary sections being independently expansible with respect to each other, and means rigidly connecting adjoining part-sections of certain of said sections independently of each other.

4. A conduit for steam pipes and the like comprising a plurality of metallic sections, each of said sections being longitudinally divided into a plurality of complementary part-sections, said part-sections being independently expansible with respect to each other, a pipe in said conduit, and an alignment ring having a plurality of outstanding portions making fine points of frictional contact circumferentially of the conduit secured to said pipe contacting with and slidable with respect to the plural part-sections for maintaining the pipe in alignment with said conduit.

5. A conduit for steam pipes and the like, comprising a plurality of sections, a pipe in said conduit, an anchoring ring for rigidly connecting the pipe to said conduit secured to said pipe and having a ange adapted to be secured between the ends of adjacent sections of the conduit.

6. A conduit for steam pipes and the like divided longitudinally into complementary sections, and flexible joints including longitudinally extending lead strips interposed between the adjoining edges of said sections andpermitting independent expansion of the sections in accordance with temperature di'erences circumferentially of the conduit.

7. A conduit for steam pipes and the like divided longitudinally into complementary part sections so as to compensate for temperature differences in different parts of the conduit, and sealing joints between the edges of the complementary part sections including a gasket interposed between the inner parts of the edges and a lead insert calking the joint along the outer parts of the edges, the lead insert providing a flexible joint adapted to absorb circumferential expansion of the conduit and further providing for unequal longitudinal expansion of the complementary part sections.

8. A conduit for steam pipes and the like divided longitudinally into complementary part sections so as to compensate for temperature differences in different parts of the conduit, and sealing joints between the edges of the complementary part sections including a gasket interposed between the inner parts of the edges and a lead insert calking the joint along the outer parts of the edges, the edges outwardly of the gasket being recessed so that the lead strip may be of substantial and greater thickness than the gasket, the lead insert providing a flexible joint adapted to absorb circumferential expansion of the conduit and further providing for unequal longitudinal expansion of the complementary part sections.

MANUEL H. GYSLING. 

